Heath who will return to one of his former club Burnley on Saturday with the Sky Blues told the club website: "On one hand we're satisfied, but not so much because they went down to ten men early in the second half. We thought we should get three points out of it then, and we probed them but unfortunately we couldn't get the goal.
"When they went down to ten men they decided to get everyone behind the ball, which is going to make even harder for us to break them down. We didn't create the gaps and they were solid and defended quite well.
"We're looking at the positives from the first two games. We're unbeaten and we kept a clean sheet as well, so we can look at the positives.